Product profile
Oura Ring 4
Oura · Smart rings
Product overview
Oura Ring 4 by Oura is a finger-worn smart ring. Tracked signals include heart rate, HRV, skin temperature, sleep duration.
Product status
Available
Form factor
Finger-worn smart ring
Signals & biomarkers
heart rate · HRV · skin temperature · sleep duration · sleep stages · SpO2 · respiratory rate · activity · readiness
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